greddy T-78 on 20b

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Old Apr 25, 2005 | 07:42 PM
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From: SWEDEN
greddy T-78 on 20b

How many rwhp can I get with a T-78 greddy turbo on my 20b street ported engine???
And how fast on the 1/4mile with a race auto tranny??
Old Apr 25, 2005 | 08:01 PM
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well....if you can hook up, and get the tires to stick And keep it in a straight line probably mid 10's or better. The amount of HP depends on how much boost, but petit's tri runs 10 psi and generates 630 to the wheels.
Old Apr 25, 2005 | 08:07 PM
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From: SWEDEN
petit do they use the T-78???
Old Apr 25, 2005 | 08:11 PM
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Originally Posted by iceman4357
well....if you can hook up, and get the tires to stick And keep it in a straight line probably mid 10's or better. The amount of HP depends on how much boost, but petit's tri runs 10 psi and generates 630 to the wheels.
Pettit doesn't go anywhere near that.

They run sequential twins, and at 15 PSI they make "550 BHP". But it is really a little less than that even.
Old Apr 25, 2005 | 08:18 PM
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From: SWEDEN
Originally Posted by Red-Rx7
Pettit doesn't go anywhere near that.

They run sequential twins, and at 15 PSI they make "550 BHP". But it is really a little less than that even.
Ok.
How much do u think my setup will make?
Old Apr 25, 2005 | 09:34 PM
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https://www.rx7club.com/showthread.p...5&page=3&pp=15

well...i thought that your car was petits because of the huge sign!

Last edited by iceman4357; Apr 25, 2005 at 09:38 PM.
Old Apr 25, 2005 | 09:47 PM
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Originally Posted by ABIEX
Ok.
How much do u think my setup will make?
400 HP
Old Apr 26, 2005 | 06:53 AM
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Turbo is too small for a 20B.
Most of the Japan 20B's that run GReddy / Mitsubishi turbos run T88's at minimum.


-Ted
Old Apr 26, 2005 | 10:31 AM
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You can run 10's with a 2 rotor. Somethings not right if you cant go faster with a 3 rotor..
Old Apr 26, 2005 | 09:24 PM
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From: SWEDEN
Originally Posted by Evil Aviator
400 HP
Why is it good for 700 hp on 2rotor but only 400 on 3rotor???
It should be the same, but no lag.
And the 3rotor is going to have more torque.
Or am I wrong?
Old Apr 26, 2005 | 11:57 PM
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Originally Posted by ABIEX
Why is it good for 700 hp on 2rotor but only 400 on 3rotor???
It should be the same, but no lag.
And the 3rotor is going to have more torque.
Or am I wrong?
1) Most of the people who have a T-78 on their 13B make about 400-450 peak HP on the dyno.
2) The Acosta T-78 20B RX-8 is reported to have made 400 HP at 10 PSI boost.
3) No offense, but if you knew what you were doing, you would ask GReddy or your engine tuner about this subject rather than bothering with the internet peanut gallery. You did not post any fuel type, boost level, vehicle weight, or other useful information, nor have you indicated that you have any technical understanding of what constitutes a given hp level or 1/4 mi time. Therefore, I assume that you have no idea what you are doing with this project, and will therefore not have the engine tuned even close to its potential. Sorry if I am totally off base, but you can always prove me wrong with actual results.
4) If you really think you will make 700 hp, why did you bother asking in the first place?

(Now is the time that you tell me what a jerk I am for having the gall to give a blunt and honest assessment based on my opinion.)
Old Apr 27, 2005 | 12:49 AM
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Ahhh nice to see ya Evil Aviator..

Oh btw..

ROFLMAO


He is soo right... and I wait patiently for the response.... /rofl again
Old Apr 27, 2005 | 03:20 AM
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Originally Posted by turboR1
You can run 10's with a 2 rotor. Somethings not right if you cant go faster with a 3 rotor..
...this response should be deleted



just because a supra can run a 9 second 1/4 doesnt mean that every supra can


same with hondas

**** there are hondas running 10s, why the hell are NSX's so goddamned slow. they have like 2 more cylinders y0
Old Apr 27, 2005 | 06:35 AM
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Originally Posted by Evil Aviator
2) The Acosta T-78 20B RX-8 is reported to have made 400 HP at 10 PSI boost.
3) No offense, but if you knew what you were doing, you would ask GReddy or your engine tuner about this subject rather than bothering with the internet peanut gallery. You did not post any fuel type, boost level, vehicle weight, or other useful information, nor have you indicated that you have any technical understanding of what constitutes a given hp level or 1/4 mi time. Therefore, I assume that you have no idea what you are doing with this project, and will therefore not have the engine tuned even close to its potential. Sorry if I am totally off base, but you can always prove me wrong with actual results.
.)

AGREED.......
Old Apr 27, 2005 | 03:36 PM
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From: SWEDEN
Originally Posted by Evil Aviator
1) Most of the people who have a T-78 on their 13B make about 400-450 peak HP on the dyno.
2) The Acosta T-78 20B RX-8 is reported to have made 400 HP at 10 PSI boost.
3) No offense, but if you knew what you were doing, you would ask GReddy or your engine tuner about this subject rather than bothering with the internet peanut gallery. You did not post any fuel type, boost level, vehicle weight, or other useful information, nor have you indicated that you have any technical understanding of what constitutes a given hp level or 1/4 mi time. Therefore, I assume that you have no idea what you are doing with this project, and will therefore not have the engine tuned even close to its potential. Sorry if I am totally off base, but you can always prove me wrong with actual results.
4) If you really think you will make 700 hp, why did you bother asking in the first place?

(Now is the time that you tell me what a jerk I am for having the gall to give a blunt and honest assessment based on my opinion.)
1)Yes they do 400-450rwhp 15psi boost...and not flywheel hp.

2)Acosta runs a "Garrett T-78 turbo"... NOT! GREDDY T-78, and it has 400 at 10psi but it can handel more power at higher loads.

3) ????.....why dont u ask if its a shine day or if its night....
I hope I know what I am doing....tune the engine wont be the problem...
I have done it before on the 2rotor.
Maybe you are right, about what I am doing of my project...drag or drift but I want them both!

4)I never said, I think I will make 700hp, I just wonderd if its possible. with that turbo.
But I think it will defenetly make 450rwhp with Greddy T-78 turbo and much more Tourqe in the low range. And thats perfect on the street.

And I am very thankful for your quote.
Old Apr 27, 2005 | 05:03 PM
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Originally Posted by ABIEX
2)Acosta runs a "Garrett T-78 turbo"... NOT! GREDDY T-78, and it has 400 at 10psi but it can handel more power at higher loads.
Well I see you did your research, so you definitely got me on that one. BTW, I don't like the wimpy GReddy T-78, so I have been looking all over for the far superior Garrett T-78. I assume that you plan on using the Garrett T-78, so where are you getting yours, and how much does it cost?

Also, I am thinking about trying out for the Olympics, so I am looking at buying some really good shoes so I can run fast. I ran a couple of times in high school PE class, so definitely know how to run. Michael Johnson ran the 200m in 19.32 seconds with these gold shoes. So how fast do you think I can run the 200m with these gold Nike shoes, a pair of white Nike shorts, and a blue Haynes T-shirt?
http://www.3m.com/us/about3M/innovation/goldshoes/

Originally Posted by ABIEX
And I am very thankful for your quote.
Those who do not take my comments personally show proof of good character and constitution, which is worth at least 5% toward the success of anything they try in life.

Last edited by Evil Aviator; Apr 27, 2005 at 05:14 PM.
Old Apr 27, 2005 | 05:06 PM
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Originally Posted by SPiN Racing
Ahhh nice to see ya Evil Aviator..
Do you think I should divulge the Rick Engman turbo selection method, or is that something that should be kept secret?
Old Apr 27, 2005 | 07:05 PM
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Originally Posted by Evil Aviator
Also, I am thinking about trying out for the Olympics, so I am looking at buying some really good shoes so I can run fast.
Right now I dont have the economy for buying shoes, so I cant test them for you....I would run without shoes! they run pretty fast for 5000years ago when the lion attacks...why dont you try to do the same as they did and thinka bout the lion. I did it once but it was not a lion it was my girls mom!
Bad mom!!!

Originally Posted by Evil Aviator
Well I see you did your research, so you definitely got me on that one. BTW, I don't like the wimpy GReddy T-78, so I have been looking all over for the far superior Garrett T-78. I assume that you plan on using the Garrett T-78, so where are you getting yours, and how much does it cost?
The garrett is good but I am going to use the PrecisionTurbo PT76GTS 1100hp on a piston engine or the PT88 1250hp on a piston engine....the PT76GTS cost is $1385 and the PT88 is for $1485.
And the PT76GTS is going to mak about 785 to the wheels and thats about mid 9.sec and 135+mph on a car that wights 3100lbs.
And this would be a great setup for the dragracing but I want the car on street and i hate the lag......ok!
chang to a biger turbo when I go to the track or buy a BB-turbo????????

Evil aviator what would you do?
Old Apr 27, 2005 | 07:43 PM
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Originally Posted by ABIEX
Evil aviator what would you do?
I'm not EA, but I would triple turbo the biatch...


-Ted
Old Apr 27, 2005 | 09:55 PM
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Originally Posted by ABIEX
Right now I dont have the economy for buying shoes, so I cant test them for you....I would run without shoes! they run pretty fast for 5000years ago when the lion attacks...why dont you try to do the same as they did and thinka bout the lion. I did it once but it was not a lion it was my girls mom!
Bad mom!!!


The garrett is good but I am going to use the PrecisionTurbo PT76GTS 1100hp on a piston engine or the PT88 1250hp on a piston engine....the PT76GTS cost is $1385 and the PT88 is for $1485.
And the PT76GTS is going to mak about 785 to the wheels and thats about mid 9.sec and 135+mph on a car that wights 3100lbs.
And this would be a great setup for the dragracing but I want the car on street and i hate the lag......ok!
chang to a biger turbo when I go to the track or buy a BB-turbo????????

Evil aviator what would you do?

I would recomend a T76 size or so from Innovative Turbo. Go with a dual ballbearing setup. You can go as small as a "Q" trim, with a larger AR.. Something like a 1.32 or so.

Here is a quick vid of the dual ballbearing in action:

http://home.comcast.net/~mhaun6/RedRx7TurboSpin.wmv
Old Apr 27, 2005 | 11:02 PM
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Originally Posted by Evil Aviator
Do you think I should divulge the Rick Engman turbo selection method, or is that something that should be kept secret?
TRADE SECRET TRADE SECRET!!!!!

Dont let it out..
Old Apr 27, 2005 | 11:04 PM
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dbl post Bah.
Old Apr 27, 2005 | 11:12 PM
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Originally Posted by ABIEX
The garrett is good but I am going to use the PrecisionTurbo PT76GTS 1100hp on a piston engine or the PT88 1250hp on a piston engine....the PT76GTS cost is $1385 and the PT88 is for $1485.
And the PT76GTS is going to mak about 785 to the wheels and thats about mid 9.sec and 135+mph on a car that wights 3100lbs.
And this would be a great setup for the dragracing but I want the car on street and i hate the lag......ok!
Wooooow....


Soo Like I shift mad quick Yo..... and well..

Using your quoted figures....

If I put the "PT76GTS 1100hp on a piston engine" on my wifes SATURN... I will have 1100hp? How about a Chevy SPRINT 3 CYLINDER? OR....... How about a Chevy 572???? Think it will be limited to 1100HP with that dainty turbo? Or will the sprint engine step up to the plate and bust out mad HP yo?

<shakes head>
Umm just because person X makes Y horsepower on a piston engine has ZERO NADA NOTHING to do with the HP you make on a rotary. Well.. maybe not nothing.. but close.

You completely missed Evil Aviators slap about the Gold Nikes.

Just cause you buy the shoes and pants and socks.. doesnt mean you will have the grunt to run that fast.

For those that missed it.. and I know the regular/long timers didnt.. Just cause you bolt on part x,y,z doesnt mean you will go "yo" fast.

Ok I am gonna stop before I go on a rant.. I have a cold and dont wanna be too silly...

Do some research on WHY people are getting X horsepower. What all did they do to get there.. besides the "golden Nikes"
Old Apr 28, 2005 | 09:49 AM
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Originally Posted by Evil Aviator
Do you think I should divulge the Rick Engman turbo selection method, or is that something that should be kept secret?
evil...holding back? i thought i'd never see the day. where's the love? no secrets among friends
Old Apr 28, 2005 | 05:45 PM
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Originally Posted by ABIEX
Evil aviator what would you do?
I would have my tuner figure it out. Choosing a turbo is not something that a novice can do based on internet posts. Just because one person makes x-amount of horsepower with a given component, it doesn't necessarily mean that you will have the same results with your project. This is especially true if you are trying to compare piston engine turbos with rotary engine turbos. Much of the performance from an engine comes from matching the parts and tuning it properly, which unfortunately is something that requires more skill than simply bolting together various parts and pieces.

If you are just looking for a basic guide, Red-Rx7's suggestion of a T76 seems to be a good choice for drag racing. However, you should really have your engine builder and/or tuner decide what will work best for your particular situation.

Originally Posted by big_rizzlah
evil...holding back? i thought i'd never see the day. where's the love? no secrets among friends
My friends know. It's only a secret to the ******** on this forum.

Last edited by Evil Aviator; Apr 29, 2005 at 05:57 PM.



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